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Format comparison

AVIF vs WebP in 2026: pick by content type, not hype

Browser support is settled; the real differences are encode cost and quality per byte. Picking between AVIF, WebP, and JPEG by content type.

Updated July 24, 2026 by Tinify.dev

For years the AVIF-versus-WebP question was really a browser-support question, and WebP won by default. That era is over: as of 2026, current versions of Chrome, Firefox, Safari, and Edge all decode both formats. WebP has been safe everywhere since roughly 2020; AVIF closed its last major gap when Edge added support in early 2024.

With support settled, the choice comes down to what the image contains, how it is produced, and how much encode time you can afford. Neither format wins across the board.

Where each format comes from

WebP derives from the VP8 video codec and shipped in 2010; it offers lossy and lossless modes, alpha transparency, and animation. AVIF derives from the newer AV1 codec and reached browsers a decade later; it also covers lossy, lossless, alpha, and animation, and adds wide color gamut and HDR support that WebP lacks.

Newer codec generally means better compression - and higher encoding cost. Both of those follow directly from AV1 being a more thorough, slower search for redundancy.

Quality per byte, by content type

• Photographs at small-to-medium sizes: AVIF. This is AVIF's strongest case. At tight byte budgets it holds detail and avoids the blocky artifacts older codecs show, and it commonly lands 20-50% smaller than a comparable WebP. If your images are photos and you can serve AVIF, serve AVIF.
• Screenshots, UI graphics, flat illustrations: WebP, often lossless. WebP's lossless mode is mature and consistently beats PNG. AVIF's advantage on this content is smaller and less predictable, and hard-edged graphics can come out softer in lossy AVIF.
• Images with transparency: either. Both handle alpha well; the photographic-versus-graphic rule above still decides it.
• Very high fidelity requirements: test both. At near-transparent quality settings the gap between the formats narrows, and AVIF's low-bitrate strengths matter less. Compare real files rather than assuming.
• Animation: measure, don't assume. Animated AVIF can be much smaller than animated WebP, but encode times are long and tooling is thinner. For short clips, a real video element often beats both.

The cost nobody puts on the marketing page

AVIF encoding is slow - typically several times slower than WebP, sometimes more at high effort settings. That cost lands differently depending on your pipeline:

• Build-time or one-off conversion: the cost is irrelevant. You encode once and serve forever. Use AVIF freely.
• On-the-fly image services: encode time is latency or server money. Many services cache aggressively precisely because of AVIF's cost.
• User uploads at scale: slower encodes mean more compute per upload. WebP may be the pragmatic default.

Decoding is a smaller concern - modern devices handle both formats without user-visible trouble - but AVIF decode is also somewhat heavier, which is worth remembering for image-dense pages on low-end hardware.

When JPEG still wins

It is 2026 and JPEG is still not obsolete, for unglamorous reasons:

• It opens everywhere. Decades-old software, embedded systems, email clients, office suites, kiosk hardware. WebP support outside browsers is good; AVIF support outside browsers is still uneven.
• Progressive rendering. A progressive JPEG shows a usable low-detail preview while loading. Neither WebP nor AVIF has an equivalent that browsers render as well.
• Encode speed and tooling. Every tool ever written can produce a JPEG, instantly.

If a photograph must be attached to an email, imported into arbitrary software, or archived for an unknown future consumer, JPEG remains the defensible choice. Compress it well - our JPEG compressor targets the point where extra bytes stop buying visible quality - and move on.

Summary table

Criterion	AVIF	WebP
Browser support (2026)	Universal, since ~2024	Universal, since ~2020
Photos at tight budgets	Best in class	Good
Screenshots / UI graphics	Unpredictable gains	Strong, esp. lossless
Transparency	Yes	Yes
HDR / wide gamut	Yes	No
Encode speed	Slow	Fast
Support outside browsers	Uneven	Good

A practical default

1. Photographic content: encode AVIF; keep a JPEG or WebP fallback if you serve non-browser consumers. The picture element handles the negotiation - see the fallback pattern in our format guide.
2. Screenshots and graphics: WebP, lossless where text sharpness matters.
3. Unsure: convert a handful of your real images both ways - PNG to AVIF, PNG to WebP, JPEG to AVIF, JPEG to WebP
   • and compare bytes and appearance at 100% zoom. Ten minutes of measurement beats any general-purpose advice, including this article's.

Whichever you pick, compress the result properly: the gap between a well-encoded WebP and a poorly-encoded AVIF is smaller than the gap between compressed and uncompressed anything. Both formats are handled by our compressor, free, with files deleted after two hours.